EP0044350B1 - Snow removing device for attachment to the front of a lorry - Google Patents

Snow removing device for attachment to the front of a lorry Download PDF

Info

Publication number
EP0044350B1
EP0044350B1 EP80104230A EP80104230A EP0044350B1 EP 0044350 B1 EP0044350 B1 EP 0044350B1 EP 80104230 A EP80104230 A EP 80104230A EP 80104230 A EP80104230 A EP 80104230A EP 0044350 B1 EP0044350 B1 EP 0044350B1
Authority
EP
European Patent Office
Prior art keywords
clearing
swivel
snow
rotation
deflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80104230A
Other languages
German (de)
French (fr)
Other versions
EP0044350A1 (en
Inventor
Alfred Ing. Grad. Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ing Alfred Schmidt GmbH
Original Assignee
Ing Alfred Schmidt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8186723&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0044350(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ing Alfred Schmidt GmbH filed Critical Ing Alfred Schmidt GmbH
Priority to AT80104230T priority Critical patent/ATE7056T1/en
Priority to EP80104230A priority patent/EP0044350B1/en
Priority to DE8080104230T priority patent/DE3067432D1/en
Priority to NO80802267A priority patent/NO155782C/en
Priority to FI802677A priority patent/FI62880C/en
Priority to JP11964480A priority patent/JPS5729710A/en
Priority to AT0508580A priority patent/AT373939B/en
Priority to US06/237,993 priority patent/US4346527A/en
Priority to CA000372087A priority patent/CA1147758A/en
Publication of EP0044350A1 publication Critical patent/EP0044350A1/en
Publication of EP0044350B1 publication Critical patent/EP0044350B1/en
Application granted granted Critical
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/08—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements
    • E01H5/09—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
    • E01H5/094—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels about vertical or substantially vertical axises

Definitions

  • the invention is based on a snow removal device for mounting on the front of a transport vehicle, with a snow blower and two clearance screws rotating about vertical axes and arranged in the clearing direction in front of the side frame parts of the centrifugal wheel housing, which are covered by part-cylindrical deflector plates over part of their outside and rear circumference are.
  • Such a snow removal device is known from German Patent 27 21 411.
  • the known device has deflecting plates which can be pivoted about vertical axes in order to be able to adapt their position to correspondingly pivotable clearing augers.
  • the deflector plates which can also be pivoted independently of the clearing auger, serve to direct the snow captured in the auger in front of the centrifugal wheel. So that the clearing augers can also be used for working into snow walls made of hard frozen snow, the deflection plates are pivoted into a rearward position in which they are disengaged.
  • the present invention is therefore based on the object to improve the structural design of the deflector plates in the sense of increasing their stability and to enable their adjustment in such a way that they are effective in any position.
  • each deflector plate is connected to a cover plate and a base plate to form a rigid swivel part which is pivotally mounted in the area of the cover plate and base plate about the axis of rotation of the assigned auger, that the swivel range of the swivel part is between 50 and 80 Is degrees, and that in its forward swivel position the plane between the front edge of the deflector and the associated axis of rotation deviates by up to 55, preferably about 42 to 45 degrees in the broaching direction from a plane spanned by the axes of rotation of the augers.
  • the deflector plate is not lifted from the auger in any swivel position.
  • the driver has the option of adapting the swivel position of the deflector plate, which always closely surrounds the auger, to the respective requirements. He will choose a front or middle swivel position for powdery, soft and wet snow, and a rear swivel position for hard snow.
  • the deflector always deflects the detected snow to the blast wheel opening and thus increases the efficiency of the blast wheel drive, combined with an enlargement of the clearing cross section.
  • the swivel part containing the deflector Due to the partially cylindrical shape of the swivel part containing the deflector, it is characterized by a high degree of stability, so that it can penetrate into the snow wall with the usual types of snow in a middle to front swivel position without being damaged.
  • deflector plate is formed by a cylinder shell extending over 70 to 100 angular degrees.
  • the preferred size is 75 to 84 degrees.
  • a swivel range of the swivel part that is sufficient for all clearing tasks is between 60 and 65 degrees.
  • each auger While the swivel part with its top and bottom plate is mounted directly on the axis of rotation of the auger, the axis of rotation of each auger is supported in such a way that a front housing is attached to the centrifugal wheel housing on both sides, which has a cylindrical shell part that closely surrounds the outside of the assigned deflector plate and on the top and bottom of each includes a supporting part supporting the axis of rotation of the assigned auger.
  • the rotary drive for the auger is arranged on the one hand on the upper support part, on the other hand, the swivel drive for the swivel part.
  • Both drives are preferably designed in the manner of hydraulic rotary drives so that they can be actuated via a hydraulic system provided on the vehicle.
  • a servomotor is preferably suitable for the swivel drive, which at the same time immovably fixes the swivel part in the respective swivel position.
  • the snow blower used in the snow removal device according to the invention can have one or two blower wheels.
  • the snow removal device essentially consists of the actual snow blower 1 and the two side augers 2, 3 arranged laterally and in front of it.
  • the blower wheel 4 of the snow blower is arranged inside the blower wheel housing 5.
  • the chute is not shown in the drawing.
  • the centrifugal wheel has a total of five blades 6 which are connected on their front side via a stiffening ring 40.
  • the Hub 7 of the centrifugal wheel has on the broach side a pre-cutter 8 with two cutting blades 9, 10.
  • the centrifugal wheel housing 5 is extended on both sides towards the broach side by a front housing 12.
  • the vertical axis of rotation 15 of a auger 2, 3 is rotatably mounted between an upper support part 11 and a lower support part 13.
  • a swivel part 16, 17 with a lateral deflector plate 28 is mounted in bearing bores in its cover plate 18 and its base plate 19.
  • a bottom rail 23 is attached.
  • the swivel part 17 shown on the right is shown in its foremost swivel position, the swivel part 16 shown on the left in its rearmost swivel position.
  • the drive transmission from the swivel drive 22 to the swivel parts 16, 17 takes place via a pinion 24 which is connected to the swivel drive 22 and which engages in a curved chain 25 on the cover plate 18.
  • the chain 25 runs inside a cross-sectionally U-shaped, circularly curved rail 26 which is welded to the top of the cover plate 18 (cf. FIG. 4).
  • Fig. 3 the pivot part 17 shown on the right is shown in perspective.
  • the surrounding components are only indicated schematically.
  • the swivel part 17 is in its maximum swiveled forward position; the front edge 29 of the swivel part 17 is located by approximately 45 degrees in front of a plane spanned by the axes of rotation of the two augers.
  • a vertical bar 27 serving for stiffening is welded to the outside of the deflector plate 28 in the vicinity of the front edge 29.
  • the strip 27 In the rearward swivel position of the swivel part 17, the strip 27 simultaneously forms a limit stop against the outer edge 30 of the casing part 31 of the front housing 12, which is stiffened by ribs 38.
  • the swivel part 17 is composed of the cylindrical shell-shaped deflector plate 28, the cover plate 18 and the base plate 19. Together, these parts form a rigid construction unit.
  • the cover plate 18 and the base plate 19 each have bearing bores through which the axis of rotation 15 runs.
  • the two plates are supported in the area of their bearing bores radially and axially via friction-reducing slide bearing bushes 32, 33 with respect to bearing rings 34, 35 seated on the rotary shaft 15.
  • the sliding bush 33 of the base plate 19 also axially rests on the lower support part 13, which in turn is firmly connected to the front housing 12.
  • cover plate 18 of the swivel part 17 is screwed by means of screws 36 to a ring segment 37 welded to the deflector plate 28.
  • the space between the augers 2, 3 and in front of the centrifugal wheel 4 is covered at the top by a cover 39 so that snow whirled up does not impair the driver's view.

Abstract

Snow removal apparatus has a housing open at its front end in which a central fan blower is mounted. Mounted to the housing forwardly of and flanking the central fan are a pair of vertically rotating clearing screws. Each of the screws is also provided with a deflector which is movable in a circular path concentric with the axis of rotation so as to provide a selectively positionable backing or rear wall therefor.

Description

Die Erfindung geht aus von einem Schneeräumgerät für den frontseitigen Anbau an ein Transportfahrzeug, mit einer Schneeschleuder und zwei in Räumrichtung vor den seitlichen Rahmenteilen des Schleuderradgehäuses angeordneten, um vertikale Achsen drehenden Räumschnecken, die mittels teilzylindrischer Abweisbleche über einen Teil ihres außenseitigen und rückwärtigen Umfangs verstellbar abgedeckt sind.The invention is based on a snow removal device for mounting on the front of a transport vehicle, with a snow blower and two clearance screws rotating about vertical axes and arranged in the clearing direction in front of the side frame parts of the centrifugal wheel housing, which are covered by part-cylindrical deflector plates over part of their outside and rear circumference are.

Ein derartiges Schneeräumgerät ist aus der Deutschen Patentschrift 27 21 411 bekannt. Das bekannte Gerät weist um vertikale Achsen verschwenkbare Abweisbleche auf, um deren Lage an entsprechend verschwenkbare Räumschnecken anpassen zu können. Die Abweisbleche, die auch unabhängig von der Räumschnecke verschwenkbar sind, dienen dazu, den in der Schnecke erfaßten Schnee vor das Schleuderrad zu lenken. Damit die Räumschnecken auch zum Einarbeiten in Schneewände aus hartgefrorenem Schnee eingesetzt werden können, ist das Verschwenken der Abweisbleche in eine rückwärtige Position vorgesehen, in der sie außer Eingriff stehen.Such a snow removal device is known from German Patent 27 21 411. The known device has deflecting plates which can be pivoted about vertical axes in order to be able to adapt their position to correspondingly pivotable clearing augers. The deflector plates, which can also be pivoted independently of the clearing auger, serve to direct the snow captured in the auger in front of the centrifugal wheel. So that the clearing augers can also be used for working into snow walls made of hard frozen snow, the deflection plates are pivoted into a rearward position in which they are disengaged.

Die Praxis hat gezeigt, daß derartige Abweisbleche von großem Nutzen, in der bekannten Ausführungsform jedoch leicht zu beschädigen sind.Practice has shown that such baffle plates are of great use, but are easy to damage in the known embodiment.

Der vorliegenden Erfindung liegt demzufolge die Aufgabe zugrunde, die bauliche Ausführung der Abweisbleche im Sinne einer Erhöhung ihrer Stabilität zu verbessern und ihre Verstellung in der Weise zu ermöglichen, daß sie in jeder Lage wirksam sind.The present invention is therefore based on the object to improve the structural design of the deflector plates in the sense of increasing their stability and to enable their adjustment in such a way that they are effective in any position.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß jedes Abweisblech mit einer Deckplatte und einer Bodenplatte zu einem verformungssteifen Schwenkteil verbunden ist, welches im Bereich von Deck- und Bodenplatte um die Drehachse der zugeordneten Räumschnecke schwenkbar gelagert ist, daß der Schwenkbereich des Schwenkteils zwischen 50 und 80 Winkelgrade beträgt, und daß in dessen vorderster Schwenklage die Ebene zwischen Vorderkante des Abweisblechs und zugehöriger Drehachse um bis zu 55, bevorzugt etwa 42 bis 45 Winkelgrade in Räumrichtung von einer durch die Drehachsen der Räumschnecken aufgespannten Ebene abweicht.This object is achieved in that each deflector plate is connected to a cover plate and a base plate to form a rigid swivel part which is pivotally mounted in the area of the cover plate and base plate about the axis of rotation of the assigned auger, that the swivel range of the swivel part is between 50 and 80 Is degrees, and that in its forward swivel position the plane between the front edge of the deflector and the associated axis of rotation deviates by up to 55, preferably about 42 to 45 degrees in the broaching direction from a plane spanned by the axes of rotation of the augers.

Anders als beim Stand der Technik wird nach dem erfindungsgemäßen Vorschlag das Abweisblech in keiner Schwenklage von der Räumschnecke abgehoben. Der Fahrer hat die Möglichkeit, die Schwenklage des die Räumschnecke stets eng umgebenden Abweisblechs genau den jeweiligen Erfordernissen anzupassen. Er wird bei pulvrigem, weichem und nassem Schnee eine vordere bzw. mittlere Schwenklage, bei hartem Schnee eine rückwärtige Schwenklage wählen. Das Abweisblech bewirkt dabei stets ein Umlenken des erfaßten Schnees, zur Schleuderradöffnung und damit eine Erhöhung des Wirkungsgrads des Schleuderradantriebs, verbunden mit einer Vergrößerung des Räumquerschnitts. Durch die teilzylindrische Form des das Abweisblech enthaltenden Schwenkteils zeichnet sich dieses durch eine hohe Stabilität aus, so daß es bei den üblichen Schneearten in einer mittleren bis vorderen Schwenklage in die Schneewand einstechen kann, ohne Schaden zu nehmen.In contrast to the prior art, according to the proposal according to the invention, the deflector plate is not lifted from the auger in any swivel position. The driver has the option of adapting the swivel position of the deflector plate, which always closely surrounds the auger, to the respective requirements. He will choose a front or middle swivel position for powdery, soft and wet snow, and a rear swivel position for hard snow. The deflector always deflects the detected snow to the blast wheel opening and thus increases the efficiency of the blast wheel drive, combined with an enlargement of the clearing cross section. Due to the partially cylindrical shape of the swivel part containing the deflector, it is characterized by a high degree of stability, so that it can penetrate into the snow wall with the usual types of snow in a middle to front swivel position without being damaged.

Eine zweckmäßige Ausgestaltung der Erfindung sieht vor, daß das Abweisblech durch eine sich über 70 bis 100 Winkelgrade erstreckende Zylinderschale gebildet ist. Die bevorzugte Größe beträgt 75 bis 84 Winkelgrade.An expedient embodiment of the invention provides that the deflector plate is formed by a cylinder shell extending over 70 to 100 angular degrees. The preferred size is 75 to 84 degrees.

Ein für alle Räumaufgaben ausreichender Schwenkbereich des Schwenkteils liegt zwischen 60 und 65 Winkelgraden.A swivel range of the swivel part that is sufficient for all clearing tasks is between 60 and 65 degrees.

Während das Schwenkteil mit seiner Deck- und Bodenplatte direkt an der Drehachse der Räumschnecke gelagert ist, erfolgt die Abstützung der Drehachse jeder Räumschnecke in der Weise, daß am Schleuderradgehäuse beidseitig ein Vorbaugehäuse angebracht ist, welches einen zylinderischen, die Außenseite des zugeordneten Abweisblechs eng umgebenden Mantelteil sowie an dessen Ober- und Unterseite je einen die Drehachse der zugeordneten Räumschnecke lagernden Stützteil umfaßt.While the swivel part with its top and bottom plate is mounted directly on the axis of rotation of the auger, the axis of rotation of each auger is supported in such a way that a front housing is attached to the centrifugal wheel housing on both sides, which has a cylindrical shell part that closely surrounds the outside of the assigned deflector plate and on the top and bottom of each includes a supporting part supporting the axis of rotation of the assigned auger.

Zweckmäßig ist dabei auf dem oberen Stützteil einerseits der Drehantrieb für die Räumschnecke andererseits der Schwenkantrieb für das Schwenkteil angeordnet. Beide Antriebe sind bevorzugt in Art hydraulischer Drehantriebe ausgebildet, so daß sie über eine am Fahrzeug vorhandene Hydraulikanlage betätigbar sind. Für den Schwenkantrieb eignet sich bevorzugt ein Stellmotor, der gleichzeitig den Schwenkteil in der jeweiligen Schwenklage unverrückbar fixiert.Appropriately, the rotary drive for the auger is arranged on the one hand on the upper support part, on the other hand, the swivel drive for the swivel part. Both drives are preferably designed in the manner of hydraulic rotary drives so that they can be actuated via a hydraulic system provided on the vehicle. A servomotor is preferably suitable for the swivel drive, which at the same time immovably fixes the swivel part in the respective swivel position.

Die beim erfindungsgemäßen Schneeräumgerät eingesetzte Schneeschleuder kann ein oder zwei Schleuderräder aufweisen.The snow blower used in the snow removal device according to the invention can have one or two blower wheels.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert. Es zeigt

  • Figur 1 eine Vorderansicht des Schneeräumgeräts
  • Figur 2 eine Draufsicht auf das Schneeräumgerät gemäß Fig. 1
  • Figur 3 eine vergrößerte perspektivische Ansicht einer Räumschnecke mit Schwenkteil und
  • Figur 4 einen vertikalen Halbschnitt durch die Drehachse einer Räumschnecke mit daran gelagertem Schwenkteil.
In the following an embodiment of the invention is explained with reference to the drawing. It shows
  • Figure 1 is a front view of the snow removal device
  • FIG. 2 shows a top view of the snow removal device according to FIG. 1
  • Figure 3 is an enlarged perspective view of a auger with swivel and
  • Figure 4 is a vertical half section through the axis of rotation of a auger with pivot part mounted thereon.

Gemäß den Fig. 1 und 2 besteht das Schneeräumgerät im wesentlichen aus der eigentlichen Schneeschleuder 1 und den beiden seitlich und davor angeordneten Räumschnecken 2, 3... Das Schleuderrad 4 der Schneeschleuder ist im Inneren des Schleuderradgehäuses 5 angeordnet. Der Auswurfkamin ist auf der Zeichnung nicht dargestellt. Das Schleuderrad weist insgesamt fünf Schaufeln 6 auf, die an ihrer Vorderseite über einen Versteifungsring 40 verbunden sind. Die Nabe 7 des Schleuderrads besitzt auf der Räumseite einen Vorschneider 8 mit zwei Schneidmessern 9, 10. Das Schleuderradgehäuse 5 ist beidseitig zur Räumseite hin durch ein Vorbaugehäuse 12 verlängert. Beidseits am Vorbaugehäuse ist zwischen einem oberen Stützteil 11 und einem unteren Stützteil 13 die vertikale Drehachse 15 jeweils einer Räumschnecke 2, 3 drehbar gelagert. An jeder Drehachse 15 ist innerhalb der Stützteile 11, 13 und benachbart diesen ein Schwenkteil 16, 17 mit einem seitlichen Abweisblech 28 in Lagerbohrungen seiner Deckplatte 18 und seiner Bodenplatte 19 gelagert. Auf dem oberen Stützteil 11 des Vorbaugehäuses 12 sitzen zwei hydraulische Drehmoto- . re, nämlich der Drehantrieb 20 mit Planetengetriebe 21 für die Räumschnecke und der Schwenkantrieb 22 für das Schwenkteil 16, 17. An der Unterseite des Schleuderradgehäuses 5 ist eine Bodenschiene 23 befestigt.According to FIGS. 1 and 2, the snow removal device essentially consists of the actual snow blower 1 and the two side augers 2, 3 arranged laterally and in front of it. The blower wheel 4 of the snow blower is arranged inside the blower wheel housing 5. The chute is not shown in the drawing. The centrifugal wheel has a total of five blades 6 which are connected on their front side via a stiffening ring 40. The Hub 7 of the centrifugal wheel has on the broach side a pre-cutter 8 with two cutting blades 9, 10. The centrifugal wheel housing 5 is extended on both sides towards the broach side by a front housing 12. On both sides of the front housing, the vertical axis of rotation 15 of a auger 2, 3 is rotatably mounted between an upper support part 11 and a lower support part 13. On each axis of rotation 15, within the support parts 11, 13 and adjacent thereto, a swivel part 16, 17 with a lateral deflector plate 28 is mounted in bearing bores in its cover plate 18 and its base plate 19. On the upper support part 11 of the front housing 12 there are two hydraulic rotary motors. re, namely the rotary drive 20 with planetary gear 21 for the auger and the swivel drive 22 for the swivel part 16, 17. On the underside of the centrifugal wheel housing 5, a bottom rail 23 is attached.

Gemäß Fig. 2 ist das rechts dargestellte Schwenkteil 17 in seiner vordersten Schwenklage, das links dargestellte Schwenkteil 16 in seiner hintersten Schwenklage gezeigt. Die Antriebsübertragung vom Schwenkantrieb 22 auf die Schwenkteile 16, 17 erfolgt über ein mit dem Schwenkantrieb 22 verbundenes Ritzel 24, welches in eine bogenförmig gespannte Kette 25 auf der Deckplatte 18 eingreift. Die Kette 25 veläuft im Inneren einer im Querschnitt U-förmigen, kreisförmig gekrümmten Schiene 26, welche auf der Oberseite der Deckplatte 18 angeschweißt ist (vgl. Fig. 4).2, the swivel part 17 shown on the right is shown in its foremost swivel position, the swivel part 16 shown on the left in its rearmost swivel position. The drive transmission from the swivel drive 22 to the swivel parts 16, 17 takes place via a pinion 24 which is connected to the swivel drive 22 and which engages in a curved chain 25 on the cover plate 18. The chain 25 runs inside a cross-sectionally U-shaped, circularly curved rail 26 which is welded to the top of the cover plate 18 (cf. FIG. 4).

In Fig. 3 ist das rechts gezeichnete Schwenkteil 17 perspektivisch dargestellt. Die umgebenden Bauteile sind lediglich schematisch angedeutet. Das Schwenkteil 17 befindet sich in seiner maximal nach vorne geschwenkten Stellung ; dabei befindet sich die Vorderkante 29 des Schwenkteils 17 um etwa 45 Winkelgrade vor einer durch die Drehachsen der beiden Räumschnecken aufgespannten Ebene. Eine der Versteifung dienende vertikale Leiste 27 ist an der Außenseite des Abweisblechs 28 in der Nähe der Vorderkante 29 angeschweißt. In der rückwärtigen Schwenklage des Schwenkteils 17 bildet die Leiste 27 gleichzeitig einen Begrenzungsanschlag gegen die Außenkante 30 des Mantelteils 31 des Vorbaugehäuses 12, welcher durch Rippen 38 ausgesteift ist. Fig. 4 zeigt einen Halbschnitt durch das Schwenkteil 17 mit in Richtung der Drehachse 15 verkürzter Darstellung. Der Schwenkteil 17 ist zusammengesetzt aus dem zylinderschalenförmigen Abweisblech 28, der Deckplatte 18 und der Bodenplatte 19. Zusammen bilden diese Teile eine verformungssteife Baueinheit. Die Deckplatte 18 und die Bodenplatte 19 weisen jeweils Lagerbohrungen auf, durch welche die Drehachse 15 hindurch läuft. Die beiden Platten sind im Bereich ihrer Lagerbohrungen radial und axial über reibungsvermindernde Gleitlagerbuchsen 32, 33 gegenüber auf der Drehwelle 15 sitzenden Lagerringen 34, 35 abgestützt. Die Gleitbuchse 33 der Bodenplatte 19 sitzt axial außerdem auf dem unteren Stützteil 13 auf, welches seinerseits mit dem Vorbaugehäuse 12 fest verbunden ist. Aus Montagegründen ist die Deckplatte 18 des Schwenkteils 17 mittels Schrauben 36 mit einem am Abweisblech 28 angeschweißten Ringsegment 37 verschraubt. Der Raum zwischen den Räumschnecken 2, 3 und vor dem Schleuderrad 4 ist nach oben durch einen Deckel 39 abgedeckt, damit aufgewirbelter Schnee nicht die Sicht des Fahrers beeinträchtigt.In Fig. 3 the pivot part 17 shown on the right is shown in perspective. The surrounding components are only indicated schematically. The swivel part 17 is in its maximum swiveled forward position; the front edge 29 of the swivel part 17 is located by approximately 45 degrees in front of a plane spanned by the axes of rotation of the two augers. A vertical bar 27 serving for stiffening is welded to the outside of the deflector plate 28 in the vicinity of the front edge 29. In the rearward swivel position of the swivel part 17, the strip 27 simultaneously forms a limit stop against the outer edge 30 of the casing part 31 of the front housing 12, which is stiffened by ribs 38. Fig. 4 shows a half section through the pivot part 17 with a shortened view in the direction of the axis of rotation 15. The swivel part 17 is composed of the cylindrical shell-shaped deflector plate 28, the cover plate 18 and the base plate 19. Together, these parts form a rigid construction unit. The cover plate 18 and the base plate 19 each have bearing bores through which the axis of rotation 15 runs. The two plates are supported in the area of their bearing bores radially and axially via friction-reducing slide bearing bushes 32, 33 with respect to bearing rings 34, 35 seated on the rotary shaft 15. The sliding bush 33 of the base plate 19 also axially rests on the lower support part 13, which in turn is firmly connected to the front housing 12. For assembly reasons, the cover plate 18 of the swivel part 17 is screwed by means of screws 36 to a ring segment 37 welded to the deflector plate 28. The space between the augers 2, 3 and in front of the centrifugal wheel 4 is covered at the top by a cover 39 so that snow whirled up does not impair the driver's view.

Claims (5)

1. A snow-clearing apparatus for frontal attachment to a transporting vehicle, comprising a snow blower (1) and two clearing worms (2, 3) which are provided in the clearing direction in front of the lateral frame parts of the blower wheel housing and rotate about vertical axes and which are adjustably covered by means of partly cylindrical deflector plates (28) over a proportion of their outside and rearward circumference, characterised in that each deflector plate (28) is connected to a cover plate (18) and a base plate (19) so as to form a deformation-resistant swivel part (16, 17) which, in the zone of the cover and base plates, is mounted so as to be pivotable about the axis of rotation of the associated clearing worm (2, 3), and in that the swivel range of the swivel part (16, 17) is between 50 and 80 angular degrees, and in that in the frontmost swivel position thereof the plane between the front edge (29) of the deflector plate (28) and the associated axis of rotation (15) deviates by up to 55 angular degrees in the clearing direction from a plane which is set up by the axes of rotation (15) of the clearing worms.
2. A snow-clearing apparatus as claimed in Claim 1, characterised in that the deflector plate (28) is formed by a cylindrical shell extending over 70 to 100 angular degrees.
3. A snow-clearing apparatus as claimed in Claim 1, characterised in that the swivel range of the swivel part (16, 17) is 60 to 65 angular deg rees.
4. A snow-clearing apparatus as claimed in Claim 1, characterised in that there is fitted on either side of the blower wheel housing (5) a frontal housing (12) which comprises a cylindrical jacket part (31), which closely surrounds the outside of the associated deflector plate (28), as well as, on the top and bottom thereof, a respective supporting part (11, 13) wich mounts the axis of rotation (15) of the associated clearing worm (2, 3).
5. A snow-clearing apparatus as claimed in Claim 4, characterised in that there is arranged on the upper supporting part (11) the rotary drive (20) for the clearing worm, on the one hand, and the swivel drive (22) for the swivel part (16,17), on the other hand.
EP80104230A 1980-07-18 1980-07-18 Snow removing device for attachment to the front of a lorry Expired EP0044350B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AT80104230T ATE7056T1 (en) 1980-07-18 1980-07-18 SNOW PLOW FOR FRONT MOUNTING ON A TRANSPORT VEHICLE.
EP80104230A EP0044350B1 (en) 1980-07-18 1980-07-18 Snow removing device for attachment to the front of a lorry
DE8080104230T DE3067432D1 (en) 1980-07-18 1980-07-18 Snow removing device for attachment to the front of a lorry
NO80802267A NO155782C (en) 1980-07-18 1980-07-28 CLEANING DEVICE FOR CONNECTION TO THE FRONT OF A VEHICLE.
FI802677A FI62880C (en) 1980-07-18 1980-08-25 RELEASE FOER MONTERING PAO FRONTSIDAN AV ETT TRNSPORTFORDON
JP11964480A JPS5729710A (en) 1980-07-18 1980-08-29 Snow removing apparatus for being attached to front surface of vehicle
AT0508580A AT373939B (en) 1980-07-18 1980-10-13 SNOW CLEARING DEVICE FOR THE FRONT SIDE ATTACHMENT TO A TRANSPORT VEHICLE
US06/237,993 US4346527A (en) 1980-07-18 1981-02-25 Snow removal apparatus
CA000372087A CA1147758A (en) 1980-07-18 1981-03-02 Snow removal apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80104230A EP0044350B1 (en) 1980-07-18 1980-07-18 Snow removing device for attachment to the front of a lorry

Publications (2)

Publication Number Publication Date
EP0044350A1 EP0044350A1 (en) 1982-01-27
EP0044350B1 true EP0044350B1 (en) 1984-04-11

Family

ID=8186723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104230A Expired EP0044350B1 (en) 1980-07-18 1980-07-18 Snow removing device for attachment to the front of a lorry

Country Status (8)

Country Link
US (1) US4346527A (en)
EP (1) EP0044350B1 (en)
JP (1) JPS5729710A (en)
AT (2) ATE7056T1 (en)
CA (1) CA1147758A (en)
DE (1) DE3067432D1 (en)
FI (1) FI62880C (en)
NO (1) NO155782C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404763A (en) * 1980-04-15 1983-09-20 Niigata Engineering Co., Ltd. Rotary snow plough
DE3424236C1 (en) * 1984-06-03 1985-09-19 Ing. Alfred Schmidt Gmbh, 7822 St Blasien Snow blower
DE3638283A1 (en) * 1986-11-10 1988-05-19 Schmidt Alfred Ing Gmbh SNOW SLINGER WITH FEEDING DEVICES
US6499238B2 (en) 2000-03-01 2002-12-31 Mtd Products Inc Snow thrower with electric chute rotation and deflector control
US6651529B1 (en) 2002-07-02 2003-11-25 Hydro-Gear Limited Partnership Hydrostatic transmission
US8505711B2 (en) 2009-02-05 2013-08-13 Poet Research, Inc. System for conveying biomass for collection, transport, or processing
US8844172B2 (en) * 2012-04-12 2014-09-30 Mtd Products Inc Three-stage snow thrower
USD705272S1 (en) 2012-05-07 2014-05-20 Mtd Products Inc. Snow thrower
US9200419B2 (en) 2013-02-27 2015-12-01 Wausau Equipment Company, Inc. Runway snowblower

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1848554A (en) * 1932-03-08 Rotary smtowplow
US1671358A (en) * 1926-04-29 1928-05-29 Emery H Fahrney Snowplow
US1641723A (en) * 1926-05-17 1927-09-06 Zinn David Snowplow
US3618748A (en) * 1970-03-11 1971-11-09 Coachella Valley Organic Ferti Feed and guidance control apparatus for a tree hogger unit
US3726029A (en) * 1971-01-14 1973-04-10 American Equipment Co Tractor mounted snow thrower with powered swivel chute
DE2721411C2 (en) * 1977-05-12 1979-04-26 Ing. Alfred Schmidt Gmbh, 7822 St Blasien Snow blowers, in particular for attachment to railway vehicles

Also Published As

Publication number Publication date
NO155782B (en) 1987-02-16
FI802677A (en) 1982-01-19
DE3067432D1 (en) 1984-05-17
FI62880C (en) 1983-03-10
NO802267L (en) 1982-01-18
NO155782C (en) 1987-05-27
EP0044350A1 (en) 1982-01-27
ATA508580A (en) 1983-07-15
JPS6250603B2 (en) 1987-10-26
AT373939B (en) 1984-03-12
US4346527A (en) 1982-08-31
ATE7056T1 (en) 1984-04-15
CA1147758A (en) 1983-06-07
FI62880B (en) 1982-11-30
JPS5729710A (en) 1982-02-17

Similar Documents

Publication Publication Date Title
DE2463034C2 (en) Tractor-operated mounted mower
DE2703497A1 (en) LOADER MAIN FRAME FOR ARTICULATED LOADERS
DE2825665A1 (en) IMPROVEMENT ON BOTTOM DRIVEN DISC MACHINES
EP0044350B1 (en) Snow removing device for attachment to the front of a lorry
DE19603928A1 (en) Chopper and conveyor
DE7735728U1 (en) EXTRACTION MACHINE FOR MINING
EP0098918B1 (en) Rotary snow-cutter
DE2721411C2 (en) Snow blowers, in particular for attachment to railway vehicles
DE2947511C2 (en) Extracting mower with a fly knife cutter for attachment to a carrier vehicle
DE19640055A1 (en) Harvester
EP0525441B1 (en) Transport and cleaning device for fodder crops
DE6605923U (en) ROTARY MOWER
DE2626575A1 (en) BUCKET WHEEL LOADER
EP0671374B1 (en) Compost turning machine
DE1757887A1 (en) Mower
DE8019355U1 (en) SNOW CLEARING DEVICE FOR THE FRONT SIDE ATTACHMENT TO A TRANSPORT VEHICLE
DE2358066C2 (en) Machine for milling or peeling off road surfaces
DE3831160A1 (en) COLLECTED CONTAINER WITH FLEXIBLE PIPING
DE3424236C1 (en) Snow blower
DE2438361C3 (en) Self-propelled work machine, especially forage harvesters
DE2535701C3 (en) Device for removing, transporting and distributing silage feed from silos, rents or the like. to feeding places (so-called silo cutter)
DE4240866A1 (en) Tractor mounted hedge trimmer with multiple cutting heads - has rotating blades with angled overlapping setting on slide adjustment on support boom
DE19637317C2 (en) Jockey wheel drive for vehicle trailers
EP0012391B1 (en) Street clearing device
DE930715C (en) Device for cleaning and keeping open ditches, in particular drainage ditches

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT SE

17P Request for examination filed

Effective date: 19820619

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19840411

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19840411

REF Corresponds to:

Ref document number: 7056

Country of ref document: AT

Date of ref document: 19840415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3067432

Country of ref document: DE

Date of ref document: 19840517

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840810

Year of fee payment: 5

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890725

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19891018

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900718

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900731

Ref country code: CH

Effective date: 19900731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950926

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970402